Window-screen.



A. SWEDBERG,

WINDOW SCREEN.

APPLICATION FILED MAR. 12. 19W.

Patented Oct. 2, 1917.

2 SHEETS- 91551: 2-

HueusT, SWEDBERQ AUGUST SWEDBERG, OF KINGSTON, PENNSYLVANIA, ASSIGNOR TO SWEDBERG CO., OF WILKES-BARBIE, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

WINDOW-SCREEN.

Specification of Letters Patent.

Application filed March 12, 1917. Serial No. 154,254.

To all whom it may concern:

Be it known that I, AUoUs'r SWEDBERG, a citizen of the United States, residing at Kingston, in the county of Luzerne and State of Pennsylvania, have invented certain new and useful Improvements in Window-Screens, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to certain improvements in window screens and has relation more particularly to a device of this general character of a roller type; and it is an object of the invention to provide a screen of this general character having novel and im-' proved means whereby the same may be readily unwound in accordance with the height to which a window may be raised together with means whereby the screen may be automatically wound upon the lowering of the window.

A further object of the invention is to provide a novel and improved device of this general character including a spring roller with which the screen is operatively engaged and wherein the screen when extended or unwound is relieved from the tension of the roller.

A still further object of the invention is to provide a novel and improved device of this general character wherein the supporting parts for the screen are capable of longitudinal adjustment so that the same may be readily applied within window frames or other openings of different widths.

Furthermore it is an object of the invention to provide a novel and improved device of this general character including a member adapted to support a roller with which the screening element is operatively engaged together with a shield or apron carried by said member and coacting with the roller or the screening element wound therearound for preventing the passage of insects or the like through the open space afforded by the roller.

It is also an object of the invention to provide a device of this general character including a supporting member and a spring-operated roller engaged .with said member together with coacting means car ried by the supporting member and the roller for normally holding the roller against movement under the influence of its,

spring, and wherein a portion of said.- couse, all as will be hereinafter more fully set forth.

The novel features of the invention will hereinafter be definitely claimed.

In order that my invention may be the better understood, 1 will now proceed to describe the same with reference to the accompanying drawings, wherein Figure l is a view in elevation illustratlng a window screen constructed in accordance with an embodiment of my invention and in applied position;

, Patented Oct. 2, i917.

Fig. 2 is a vertical sectional view taken through the structure as shown in Fig. 1, the screen fabric being indicated diagrammatically.

Fig. 3 is a view in top plan of the supporting member and its concomitant parts as herein embodied; r

Fig. 4 is a longitudinal vertical sectional view taken through Fig. 3;

Fig. 5 is a view in end elevation with a;

portion broken away of the supporting member as herein set forth;

Fig. 6 is a sectional view taken substantially on the line 66 of Fig. 4; r

Fig. 7 is a view partly in section'and partly in elevation of the end portion of the supporting member opposite to that shown in Fig. 6;

Fig. 8 is a view in end elevation of the roller as herein included;

Fig. 9 is a view in elevation with a por tion broken away of the rod adapted to be secured to the window sash;

Fig. 10 is an enlarged sectional view taken substantially on the line 1010 of Fig. 4:;

V Fig. 11 is a View partly in elevation and partly in section of the supporting member as herein embodied, the coacting roller being omitted;

Fig. 12 is a sectional view taken substantially 011 the line 12-12 of ,Fig'. 11;

Fig. 1.3 is a fragmentary view in perspective of the apron or guard as herein c1n-.

bodied; and

Fig. 14 is a fragmentary view in perspective. of the end portion of the supporting member opposite to that shown in Fig. 11.

As disclosed in the accompanying drawings, S denotes a supporting member herein disclosed as comprising two'elongated fiat plates 1 of substantially the same length, and one of said plates has its opposite longitudinal marginal portions returned to afford guideways 2 with which the second plate is slidably engaged. 13y this arrangement it will be at once self-evident that the supporting member S may be readily and conveniently adjusted in order to compensate for window frames or other openings of different widths.

The outer ends of each of the sections or plates 1 of the supporting member S are provided with the upstanding extension 3. In practice the supporting member S is adapted to be rested upon the sill of a window frame or the lower wall of a window opening with the upstanding portions 3 in contact with the vertical walls of the frame or opening and in order to anchor the member S in such position the upstanding portions 3 are provided with the openings 1 through which suitably fastening means are adapted to be directed.

R denotes 'a roller also comprising two sections 5 and 6 adjustably engaged one with the other so that said pole may be lengthened 0r shortened in accordance with the necessities of practice.

As herein disclosed, each of the sections 5 and 6 is tubular and the outer end of the section 5 has inserted therein the block 7 keyed or otherwise secured, as at 8, within said section 5. i The outer face of the block 7 is arranged slightlyinward of the adjacent or outer end of the section 5 and has extending outwardly therefrom at its axial center the cylindrical sleeve 9 which terminates substantially flush with the adjacent or outer end of the section 5. The outer end of the section 5 is provided with the inwardly directed annular flange 10 having produced in its free or inner marginal portion the ratchet teeth 11 for a purpose to be hereinafter more particularly set forth. The section 5 is also provided with a longitudinally disposed slot 12 extending substantially the entire length thereof for a purpose to be hereinafter decided.

The section 6 is adapted to be telescopicallyengaged within the section 5 and the inner end portion of said section 6 is provided with a threaded opening is adapted to be engaged by the binding screw 15 also disposed through the slot 12 whereby it will be perceived that the sections 5 and 6 may be readily and effectively held at their different relative adjustments.

Permanently secured within the section 6 at a point slightly inward of the outer end of said section is a head 16 and which is in swivcled engagement therewith the elongated rod 17 extending inwardly of the seotion 6. The portion of the rod 17 in advance of the head 16 is flattened, as indi cated at 18, and terminates inwardly of or substantially flush with the outer end of the section 6. The outer end of the section 6 is also defined by an inwardly directed annular flange 19 resulting in a restricted opening 20 whereby operative engagement may be had with the flattened portion 18 in a manner and for a purpose which will be hereinafter set forth.

The inner end portion of the rod 17 is rotatably disposed through the block or head 21 fixed within the section 6 and which serves to maintain the rod 17 disposed axially of the section 6.

Coacting with the rod 17 in a conventional manner is the coil spring 22 which serves to impose the requisite tension upon the roller It as to cause the same to automatically r0- tate in one direction.

One of the extensions 8 of the supporting member S is provided with an inwardly direc'ted pin 23 which is adapted to be received by the cylindrical sleeve 9 of the section 5, and whereby said end portion of the roller R is rotatably supported. The second extension 3 is provided with the inwardly directed sleeve 24 angular in cross section and adapted to receive the flattened end portion 18 of the rod 17. By having the sleeve 9 and flattened portion 18 hereinbefore referred to substantially confined within their respective sections 5 and 6, it will be at once self-evident that the outer ends of said sec tions will be substantially in contact with the extensions 3, the advantages of which being, it is thought, clearly apparent to those skilled in the art to which my invention appertains.

Thefirst named extension 3 is provided with an elongated slot 25 positioned in-. wardly of the pin 28 carried by said extension, and disposed through said slot 25 is the inwardly directed finger 26 carried by the inner end portion of the arm 27 extending substantially transversely of the extension and overlying the outer face thereof. The arm 27 is pivotally mounted intermediate its length as at 28, with said extension 3 and the outer portion of said arm is returned, as at 29, to afiord convenient means whereby rocking movement may be imparted to the arm 27 as may be necessitated by the requirements of practice.

The finger 26 is adapted to be maintained in operative engagement with a ratchet tooth 11 through the medium of the spring 30 herein disclosed as anchored at one end to the extension 3 and having its opposite or free end contacting with an edge of the arm 27 at a the pivot 28. The edge of the arm 27 with which the free end of thespring 30 coacts is provided with a longitudinally disposed groove 31 whereby said free end portion of the spring 30 is maintained in requisite contact with the arm. It is thought to be selfevident that when it is desired to have the roller R rotate under the influence of the spring 22, it is only necessary to manually move the returned portion 29 in a direction to cause the finger .26 to move toward the pin 23.

The sections 5 and 6 of the roller R are each provided with a plurality of longitudinally spaced prongs or fingers 32 with which an end portion of a screen fabric F'is adapted to be engaged so that said screen fabric is conveniently and effectively secured to the roller. The opposite or outer end portion of the fabric F has operatively engaged therewith the pole or rod P. This pole or rod-P also comprises longitudinally adjustable sections 33 and herein disclosed as in telescoping relation. The outer ends of the sections 33 are provided with the heads 34 adapted to frictionally engage the side or vertical portions of a window frame or other opening.

The pole or rod P is also adapted to be secured to a horizontal rail of a sash so that when the sash is adjusted into an open position the screen fabric F will be unwound from the roller R in order to prevent passage of insects through the open window. When the sash is to be adjusted into closed position it is only necessary to impart the requisite movement to the arm 27 to permit the screen fabric F to be automatically wound upon the roller R. It is also to be particularly noted that as the finger 26 is normally in engagement with a ratchet tooth 11 the screen fabric F is relieved of strain or pull thereon when unwound by the spring 22 of the roller R.

When the rollernR is in applied position the same is slightly separated from the plates 1 thereof and in order to prevent the ingress of insects, dust or the like through said space I find it of advantage to provide the apron or shield A which is adapted to be interposed between the extensions 3.

As herein embodied, the apron or shield A comprises two elongated plates 35 slidably engaged one with the other so that said apron or shield A may be readily adjusted in accordance with the necessities of practice. A longitudinal marginal portion of each of the plates 35 of the apron at the outer end thereof is provided with a barrel 36 or the like which is adapted to receive the inwardly directed pins 37 carried by the extensions 3 adjacent an inner corner thereof. By this arrangement it will be at once selfpoint intermediate the slot 25 and evident that the apron or shield A is mounted for swinging movement so that the outer marginal portion thereof may contact with the roller R or the fabric F wound there-' around.

It is also preferred that the plates 35 of the apron or shield A be concavo-convex in cross section so thatthe apron or shield may be readily and effectively applied. It is also to be noted'that the apron or shield A isso positioned relative to the roller R as not to interfere or obstruct the winding of the fabric'F upon the roller R.

From the foregoing description, it is thought to be obvious that a screen constructed in accordance with my invention is of an extremely simple and comparatively inexpensive nature and is particularly well adapted for use by reason of the convenience and facility with which it may be assembled, and it will also be obvious that my invention is susceptible of some change and modification without material departure from the principles and spirit thereof and for this reason I do not wish to be understood as limiting myself to the precise arrangement and formation of the shown in carrying out my invention in practice, except as hereinafter claimed.

I claim:

1. A device of the character described comprising a supporting member-provided with lateral extensions, a roller rotatably supported by said extensions, one end portion of the roller being provided with a ratchet wheel, an arm pivotally engaged with the outer face of the extension of the several parts herein supporting member adjacent the end of the roller provided with the ratchet wheel, said arm normally coacting with the ratchet wheel for holding the roller against movement in one direction, said extension being provided with an opening through which a terminal of the arm extends to engage the ratchet wheel, the outer end portion of the arm being laterally disposed in a direction inwardly of the supporting member to afford engaging means.

A device of the character described comprising a supporting member provided with lateral extensions, a roller rotatably supported by said extensions, one end portion of the roller being provided with a ratchet wheel, an arm pivotally engaged v with the outer face of the extension of the supporting member adjacent the end of the roller provided with the ratchet wheel, said extension being provided with an opening through which a terminal of the arm extends to engage the ratchet wheel, an elongated spring anchored at one end to the outer face of said extension and having its opposite end portion bearing against an edge of the arm for normally maintaining the arm operatively engaged with the ratchet wheel of the roller for holding the roller against movement in one direction. 7

3. A device of the character described comprising a supporting member provided with lateral extensions, a roller rotatably supported by said extensions one end portion of the roller being provided with a ratchet wheel, an arm pivotally engaged with the outer face of the extension of the supporting member adjacent the end of the roller provided with teeth, said extension being provided with an opening through which a terminal of the. arm extends to engage the ratchet wheel, an elongated spring anchored at one end to the outer face of said extension and having its opposite end portion bearing Copies of this patent may be obtained for five cents each, by addressing the against an edge of the arm r'or normally maintaining the arm operatively engaged with the ratchet wheel of the roller for holding the roller against movement in one direction, the edge of the arm with which the free end of the spring coacts being provided with a longitudinally disposed groove whereby said free end portion of the spring is maintained in requisite position with the arm.

In testimony whereof I hereunto afiix my signature inthe presence of two witnesses.

AUGUST SVVEDBERG. \Vitnesses WM. 1. lVILLIAMs, GOMER 'IXDAVIS.

Commissioner of Patents.

Washington, D. C. 

